EP0427353A2 - Scheibenmäher - Google Patents

Scheibenmäher Download PDF

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Publication number
EP0427353A2
EP0427353A2 EP90203045A EP90203045A EP0427353A2 EP 0427353 A2 EP0427353 A2 EP 0427353A2 EP 90203045 A EP90203045 A EP 90203045A EP 90203045 A EP90203045 A EP 90203045A EP 0427353 A2 EP0427353 A2 EP 0427353A2
Authority
EP
European Patent Office
Prior art keywords
disc
transmission casing
assembly
shaft member
surface portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90203045A
Other languages
English (en)
French (fr)
Other versions
EP0427353A3 (en
Inventor
Earl E. Koch
Franja F. Voler
Edmund O. Howell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Holland North America Inc
Original Assignee
Ford New Holland Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford New Holland Inc filed Critical Ford New Holland Inc
Priority to EP19900203045 priority Critical patent/EP0427353A3/en
Publication of EP0427353A2 publication Critical patent/EP0427353A2/de
Publication of EP0427353A3 publication Critical patent/EP0427353A3/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • A01D34/664—Disc cutter bars

Definitions

  • the present invention relates to a disc cutterbar of the type utilizing intermeshing gears for the transmission of rotary power and which comprises improved disc cutter rotary assemblies.
  • Disc cutterbars of the type utilizing a plurality of intermeshed gears to transfer rotational power through the transmission casing to the rotatably mounted disc cutter units typically are provided with a pair of idler gears rotatably mounted within the transmission casing between each pair of adjacent disc cutter assemblies.
  • the purpose of this transmission gear configuration is to provide opposing directions of rotation for adjacent disc cutter units.
  • each disc cutter rotor assembly thereof is a captive unit whose individual components are neither serviceable nor removable from the assembly without causing damage to the other components.
  • a disc cutterbar for severing standing crop material from the ground
  • which has a plurality of disc cutter assemblies detachably mounted to an upper surface portion of a transmission casing : said upper surface portion having an opening therein corresponding to each disc cutter assembly; - said transmission casing further also comprising a lower surface portion spaced below the upper surface portion and housing a power transmission gear train including at least one idler gear positioned between adjacent disc cutter assemblies; and - each said disc cutter assembly comprising :
  • the hub and shaft members are of welded construction and are detachably and rotatably mounted within the respective bearing housings via said removable bearing assemblies.
  • the drive gear for each disc cutter assembly preferably is splined onto the corresponding shaft member and is retained in place by a fastener and washer assembly to permit this drive gear to be removed from said shaft member. Sealed holes in the bottom of the transmission casing permit access to the respective fastener and washer assemblies to permit the drive gears to be removed from the shaft members before removing the respective disc cutter assemblies from the transmission casing.
  • a disc cutterbar construction with a low profile which facilitates the flow of crop material over the cutterbar and yet permits the individual components of the rotor assemblies to be serviced and/or replaced as needed without damaging the remaining components of these assemblies.
  • the drive gear can be disconnected from each respective disc cutter rotor assembly before said assembly is removed from the disc cutterbar.
  • the bearing assembly for each respective disc cutter rotor assembly can be replaced without requiring replacement of the drive gear and other structural components of said rotor assembly. Accordingly, the present invention thus provides a disc cutter rotor assembly for use in a low profile disc cutterbar which is durable in construction, inexpensive of manufacture, carefree of maintenance, facile in assemblage and simple and effective in use.
  • a top plan view of a crop harvesting machine commonly referred to as a disc mower-conditioner, incorporating the principles of the instant invention, can be seen.
  • Any left and right references are used as a matter of convenience and are determined by standing at the rear of the machine and facing in the direction of operative travel.
  • the disc mower-conditioner 10 is supported over the ground G by a wheeled frame 12.
  • the embodiment as shown in the drawings is commonly referred to as a pull-type machine and, therefore, is equipped with a draft tongue 13 and a PTO driveline 14 to input rotational power from a pulling tractor (not shown).
  • the machine 10 is provided with a header 15 floatingly supported from the frame 12 in a conventional manner.
  • the header 15 is provided with a disc cutterbar 20, described in further detail below, and a conditioning mechanism 16, including an upper roll 17 and a lower roll 18, positioned immediately rearwardly of the cutterbar 20 to receive and condition severed crop.
  • Conditioned crop material which is discharged from the conditioning mechanism 16 is engaged with the rearwardly converging baffle shields 19 that deposit this conditioned crop into a consolidated windrow upon the ground G in a conventional manner.
  • the power input shaft 22 receives rotational power from the PTO driveline 14 and transfers the rotational power through a series of intermeshing power transmission gears described in greater detail below and rotatably powers the operation of the disc cutter assemblies 25, each of which has a pair of outwardly extending knives 27 that engage the standing crop material and, by rotation along a circular arc exhibited by the arc 21, affect a severing thereof from the ground.
  • the disc cutter assemblies 25 at the respective ends of the cutterbar 20 are provided with a hat-shaped divider drum 29 to facilitate the flow of crop material over the cutterbar 20 and inwardly toward the conditioning mechanism 16.
  • Each disc cutter assembly 25 is provided with a detachably connected cutter disc 26 which carries the knives 27 for engagement with the standing crop material.
  • the power input shaft 22 delivers rotational power to a power tranmission train 30, including a drive gear 32 associated with each respective disc cutter assembly 25 and a pair of idler gears 34 mounted between adjacent drive gears 32.
  • the provision of two idler gears 34 between adjacent drive gears 32 permits the adjacent disc cutter assemblies 25 to be rotated in opposing directions.
  • the transmission casing 35 is formed with an indentation 36 in both the upper surface portion 37 and the lower surface portion 38 through which the mounting hole 39 passes.
  • Each idler gear 34 is rotatably mounted on the apparatus 40 by a bearing assembly 41.
  • the mounting apparatus 40 includes a spacer member 42 having a lip portion 43 and a shank portion 44 defining a recessed portion 45.
  • the spacer member 42 extends completely through the the mounting hole 39 in the transmission casing 35 and engages both the upper surface portion 37 and the lower surface portion 38 along its shank portion 44 to provide radial support for the spacer member 42 and thus the mounting apparatus 40.
  • the inner race of the bearing assembly 41 is mounted on the shank portion 44 of the spacer member 42 between the upper surface portion 37 and the lower surface portion 38.
  • a bolt 46 passes through the spacer member 42 such that the head portion 47 of the bolt 46 is received within the recessed portion 45 of the spacer member 42.
  • the securing member 48 engages the lower surface portion 38 of the transmission casing 35 while that the lip portion 43 of the spacer member 42 engages the upper surface portion 37 of the transmission casing 35 to permit the mounting apparatus 40 to squeeze the casing 35 against the bearing assembly 41.
  • the special shape of the securing member 48 fits within the shank portion 44 of the spacer member 42 and extends outwardly thereof to engage with its lip portion 52 the lower surface portion 38 of the casing 35.
  • the disc cutter members 26 are detachably mounted to a rotor assembly 50 by fasteners 51.
  • the upper surface portion 37 of the transmission casing 35 is provided with an access opening 53 through which the rotor assembly 50 extends into the casing 35.
  • the rotor assembly 50 includes a bearing housing 55 detachably mounted on the upper surface portion 37 of the casing 35 by a plurality of bolts 56 extending entirely through the transmission casing 35 and engaging the lower surface portion 38.
  • the bearing housing 55 mounts a bearing assembly 57 which is removably secured by a snap ring 58 to retain the bearing assembly 57 in place with respect to the housing 55.
  • the bearing assembly 57 rotatably mounts a shaft member 60 for rotation relative to the bearing housing 55.
  • the shaft member 60 projects both above and below the bearing housing 55.
  • a hub 62 is welded to the top of the shaft member 60 for rotation therewith above the bearing housing 55.
  • the disc member 26 is connected to the hub 62 by the aforementioned fasteners 51.
  • the drive gear 32 for the disc cutter assembly 25 is splined onto the bottom of the shaft member 60 and positioned within the transmission casing 35 for intermeshed engagement with the adjoining idler transmission gears 34.
  • the drive gear 32 is secured to the shaft member 60 by a fastener and washer assembly 65 which is threaded into the shaft member 60.
  • the lower surface portion 38 of the transmission casing 35 is provided with a hole 67 therein to gain access to the fastener and washer assembly 65 to permit a disconnection of the drive gear 32 from the shaft member 60 without removing the rotor assembly 50 from the transmission casing 35.
  • the hole 67 is sealed with a seal 68 to maintain the fluid tight integrity of the transmission casing 35.
  • An O-ring seal 69 is positioned between the bearing housing 55 and the upper surface portion 37 of the casing 35 to seal the access opening 53 and prevent leakage therefrom.
  • the component parts of the rotor assembly 50 can be assembled in the following manner.
  • the bearing assembly 57 is first pressed into the bearing housing 55 and retained in place by the snap ring 58. After supporting the inner race of the bearing assembly 57, the shaft member 60 is pressed through the inner race.
  • the drive gear 32 can then be splined onto the shaft member 60 and retained in place by the fastener and washer assembly 65. Removal of the component parts from an assembled bar can be done by accessing the fastener and washer assembly 65 through the hole 67 for disconnecting the drive gear 32 from the shaft member 60 before the rotor assembly 50 is removed from the casing 35.
  • the bearing assembly 57 can be replaced in the opposite manner from the assembly thereof as described above.
  • the idler gear mounting apparatus 40 permits a stable, substantial mounting for the idler gear 34 while also permitting an ease of serviceability to the bearings 41 and gears 34.
  • the rotor assembly 50 permits the cutterbar 20 to retain a low, thin profile to facilitate the flow of severed crop material over the cutterbar 20.
  • the rotor assembly 50 further also provides a disc cutter assembly 25 that can be easily serviced and permits replacement of any component part thereof.
  • the securing member 48 rather than the spacer member 42 may be provided with a recessed portion 45 for receiving the head portion 47 of the bolt 46, which, in this case threadably engages with the spacer member 42 rather than with the securing member 48.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)
EP19900203045 1986-03-31 1987-03-30 Disc cutter rotor assembly Withdrawn EP0427353A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19900203045 EP0427353A3 (en) 1986-03-31 1987-03-30 Disc cutter rotor assembly

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US84665586A 1986-03-31 1986-03-31
US846655 1986-03-31
EP19900203045 EP0427353A3 (en) 1986-03-31 1987-03-30 Disc cutter rotor assembly

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP87200586.3 Division 1987-03-30

Publications (2)

Publication Number Publication Date
EP0427353A2 true EP0427353A2 (de) 1991-05-15
EP0427353A3 EP0427353A3 (en) 1991-07-17

Family

ID=26126084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900203045 Withdrawn EP0427353A3 (en) 1986-03-31 1987-03-30 Disc cutter rotor assembly

Country Status (1)

Country Link
EP (1) EP0427353A3 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965258A1 (de) * 1998-06-18 1999-12-22 Maschinenfabrik Bernard Krone GmbH Mähmaschine
FR2840765A1 (fr) * 2002-06-14 2003-12-19 Kuhn Sa Dispositif de coupe d'une faucheuse rotative comportant une fixation amelioree d'un organe de coupe
NL1034693C2 (nl) * 2007-11-14 2009-05-15 Lely Patent Nv Maai-inrichting met tandwiel-aangedreven meshouders.
CN109644666A (zh) * 2019-01-25 2019-04-19 湖南农业大学 多圆盘刀式高速切割器
CN113973572A (zh) * 2021-10-08 2022-01-28 中国农业机械化科学研究院呼和浩特分院有限公司 一种组合盘式旋转切割装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474811A1 (fr) * 1980-02-04 1981-08-07 Kuhn Sa Barre de coupe perfectionnee
FR2496394A1 (fr) * 1980-12-18 1982-06-25 Kuhn Sa Perfectionnement aux supports d'elements coupants des faucheuses rotatives
FR2496391A1 (fr) * 1980-12-19 1982-06-25 Kuhn Sa Perfectionnement aux faucheuses
FR2570248B1 (fr) * 1984-09-19 1990-06-29 Kuhn Sa Faucheuse rotative

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965258A1 (de) * 1998-06-18 1999-12-22 Maschinenfabrik Bernard Krone GmbH Mähmaschine
FR2840765A1 (fr) * 2002-06-14 2003-12-19 Kuhn Sa Dispositif de coupe d'une faucheuse rotative comportant une fixation amelioree d'un organe de coupe
WO2003105566A1 (fr) * 2002-06-14 2003-12-24 Kuhn S.A. Faucheuse rotative
US7181897B2 (en) 2002-06-14 2007-02-27 Kuhn S. A. Rotary mower
NL1034693C2 (nl) * 2007-11-14 2009-05-15 Lely Patent Nv Maai-inrichting met tandwiel-aangedreven meshouders.
CN109644666A (zh) * 2019-01-25 2019-04-19 湖南农业大学 多圆盘刀式高速切割器
CN113973572A (zh) * 2021-10-08 2022-01-28 中国农业机械化科学研究院呼和浩特分院有限公司 一种组合盘式旋转切割装置

Also Published As

Publication number Publication date
EP0427353A3 (en) 1991-07-17

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